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No. 355,288. Patented Dec. 28, 1886.

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.UNITED STATES PATENT CHARLES O. YALE, OF ROME, NEW YORK, ASSIGNOR' OF ONE-HALF TO M. CALVIN WEST, SAME PLACE.

ADJUSTABLE HANGER. v

SPECIFICATION forming part of Letters Patent No. 355,288, dated December 28, 1886. Application filed January 29, 1886. Serial No. 190,939. (No model.)

To all whom it may concern:

Be it known that I, CHARLES O. YALE, of

Rome, in the county of Oneida and State of New York, have invented certainnew and useful Improvements in Adjustable Hangers; andI do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilledin the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

My invention relates to an adj ustablehanger; and it consists in the various combinations of parts hereinafter more fully'pointed out and claimed.

Figure l is a side elevation of my improved adjustable hanger and a lever-clamping device for raising or lowering the lamp, for which I have made a separate application for Letters Patent; Fig. 2 is a detailed view of a section of the friction device. Fig. 3 is a vertical section of my improved hanger. Fig. 4 is a de tailed view of asection, showing the friction device in position when the suspended weight is being raised. Fig. 5 is a section view of the same, showing the friction device in position when the weight is being suspended. Fig. 6 is'a side view of my improved hanger, of a modified construction. Fig. 7 is a section view of a portion of the same. Fig. 8 is asection view on line a; 00, Fig. 7. Fig. 9 is a side view of my adjustable hanger of a modified construction. Fig. 10 is an edge view of Fig. 9, with the portion removed, as indicated on line g y, Fig. 9. Fig. 11 is a section detailed view.

In the accompanying drawings similar letters of reference refer to corresponding parts throughout the several views.

My improved adjustable hanger is adapted to be used for supporting alamp to the ceiling, or any other article, where its position is de sired to be elevated or lowered.

I am aware that extension chandelier and lamp hangers have been provided with an internal movable screw and a nut, the one turning upon .the other by end-thrust, and an au- 50 tomatic stop device operating to prevent such turning of the screw or nut, thereby to stop the descent of the chandelier; and I am also aware that similar devices have been provided with one or more twisted or spiral ribbed rods or tubes movable up and down simultaneously 5 5 with said. sliding tube or rod, combined with friction-producing mechanism. I do not claim either of these constructions.

In constructing my improved adjustable hanger I provide a circuitous skeleton track of the-required length and size, having referenceto the particular purpose to which the same is applied. The track is required to be secured stationary in suitable fittings. I providea friction device for moving on thetrack, 6

whereby the article to be suspended may be moved up or down and held stationary in any desired position. I attainthis end by the frietion device shown in Figs. 3, 4, and 5, as fol lows:

Iprovide a circuitous serpentine track, a, se cured at its extremes. At the upper end the track is secured in cap a, which is provided with a screw-threaded projection, a, for engaging the ceiling or other support for suspending the hanger, and at the opposite end the track is held in cap a which has a central perforation, a, for allowing a connecting device, ed. to move up or down therein, which should be so constructed that the same will not revolve, but slide in the perforation. On the upper end of this connecting device I provide afriction sleeve, a, which is mounted on the connecting device to freely rotate thereon. In the upper end of this sleeve I provide a tapers5 ing chamber, a into whichis fitted atapering head, a on the end of the connecting device, which allows the sleeve to revolve on the connecting device. 'IVhent-he article to be suspended is raised, the friction device assumes the position shown in Fig. 4,fthe tapering end being loose in the chamber, and when the weight is allowed to rest onthe connecting device the tapering end of the connecting device is drawn into the tapering chamber, as

shown in Fig. 5,whereby the suspended weight is immediately held stationary. Frictionsleeve a is provided with two projecting studs, a and a, which are inserted in or held to the sleeve a sufficient distance apart toeinbrace rco.

theopposite sides of the track, as shown in Figs. 3 and 4.

a represents a tubular sheath covering the working mechanism. It is quite obvious that this sheath may be omitted without departing from the spirit of my invention.

In Fig. 6 a modification of the same general design is shown. Iuse the same track a with the friction device constructed in substantially the same way. The track connects with the upper and a lower cap, a and a substantially as before described. On opposite sides of these caps I provide ways a a, which are held stationary in the caps and on each side of the track. My friction device consists of sleeve a, with pins a and a and has a flange, a, having perforations a a, which are formed to receive ways a a. I provide two connecting rods or devices movable up or down, a a, which are rigidly secured at the upper end to flange a of the friction device, and at the lower end to disk (0, to which the article to be supported is attached. In the friction-sleeve, slightly below the flange, I provide groove a", as indicated in Figs. Tand 8. The upper surface of this groove is provided with projecting teeth, and the lower surface is smooth. I provide stud a, which is let into the surface of the rotating sleeve a. The stud is constructed to rotate in the annular grooves a",the sleeve being provided with proj ections a and a,for engaging opposite surfaces of the track, by means of which the rotating sleeve is moved on the track, thereby rotating the stud in the annular groove, which drops to the lower su rface of the groove when the article to be supported is raised or lowered slowly. When the weight of the article to be supported is suddenly thrown onto the connecting-rod, which connects with the movable friction device hereinbefore stated, the teeth in the upper surface of the annular groove are brought in contact with and engage the rotating stud in the groove, thereby holding the weights stationary.

In Figs. 9 and 10 a modified construction is shown. The track is cut or formed in a flat surface, supported substantially as before mentioned, a connecting device movable up or down fitting over and sliding on the external surface of the track. In the upper por tion of the connecting device a, I provide a.

frietioudevice, by means of a horizontal slot, a extending through the same, as indicated in Fig. 11, with two or more circular "depres' sions, a, in the horizontal slot. I pass abolt or rivet through the apertures a in. the slide and through the track.

This bolt or rivet a is free to move horizontally to accommodate the serpentine track when the weight is moving upward or downward slowly. When the support which moves the weight is suddenly removed, the circular depressions in the slot come in contact with the bolt or rivet, when the article is rigidly held.

The mechanism described and indicated by the termfriction device should be construed to embrace the words friction-brake, friction device, or movable device, and should be constructed to move on the track by end-thrust or gravity.

The device connected with the track for guiding the connecting-rod may be termed a Verticallyguiding construction, and the term slide is used to denote a connectingrod or other device movable with the brake, and the words connecting device in the specification are used to designate means employed for attaching or connecting the weight to be suspended to the slide or brake, and for this purpose a hook, rod, or any other suitable mechanism may be used.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination of an inclined track provided with a vertical guiding construction, a slide engaging said guiding construction, a. movable device engaging the track and 'having the movable connection with theslide, and means, substantially as described, forimmovably connecting the slide and the track and engaging device, substantially as set forth, for the purposes specified.

2. The combination, with the circuitous skeleton track provided with a vertically-guiding construction, of a. sliding connecting device movable'in said guiding construction and movable brake engaging the track and having a movable connection with the connecting-rod, and means, substantially as set forth, for immovably connecting the slide and the track, substantially as set forth.

3. The combinatiomwith the skeleton track held at its extreme, of the friction device consisting of a rotating sleeve having a tapering chamber in one end, mounted on a connecting-rod provided with a tapering end for working in the sleeve, and pins in the rotating sleeve for engaging the track, arranged substantially as described.

In witness whereof I have aflixed my signature in presence of two witnesses.

' CHARLES O. YALE. Vitnesses:

EDWIN H. RIsLEY, DANIEL MCGUOKEN. 

